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fix(pools): move ILM-expired current versions during decommission
Signed-off-by: Denis Babchuk <babchukdenis@icloud.com>
This commit is contained in:
@@ -0,0 +1,449 @@
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// Copyright (c) 2026 Denis Babchuk
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//
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// This file is part of Silo Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"slices"
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"strings"
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"testing"
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"time"
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"github.com/minio/minio/internal/amztime"
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"github.com/minio/minio/internal/bucket/lifecycle"
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objectlock "github.com/minio/minio/internal/bucket/object/lock"
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"github.com/minio/minio/internal/bucket/versioning"
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xhttp "github.com/minio/minio/internal/http"
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)
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// Decommission and rebalance leave a version that ILM expires to the expiry
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// workers. Expiring the current version of a versioned object only puts a
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// delete marker on top of it: the version stays as a noncurrent version and
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// has to be moved like any other. A version that ILM does delete is not moved,
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// and the source copies of the versions that were moved must still be removed.
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// migrationILM is a bucket in pool 0 of two pools. The ILM expiry workers are
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// replaced by a queue that nothing drains, so the expiries a decommission or
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// rebalance queues run after it, as when the workers lag behind the walk.
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type migrationILM struct {
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t *testing.T
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z *erasureServerPools
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bucket string
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queue chan expiryOp
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objects []string
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labels map[string]string // object and version ID -> label of a version
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markers map[string]string // object and version ID -> label of a delete marker
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}
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func newMigrationILM(t *testing.T, status versioning.State, lock bool, rules string) *migrationILM {
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t.Helper()
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z, _ := migrationTestPools(t)
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ctx := t.Context()
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m := &migrationILM{
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t: t, z: z, bucket: "migration-ilm", queue: make(chan expiryOp, 100),
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labels: map[string]string{}, markers: map[string]string{},
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}
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err := z.MakeBucket(ctx, m.bucket, MakeBucketOptions{LockEnabled: lock, VersioningEnabled: status == versioning.Enabled})
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if err != nil {
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t.Fatal(err)
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}
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meta, err := globalBucketMetadataSys.Get(m.bucket)
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if err != nil {
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t.Fatal(err)
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}
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if status == versioning.Suspended {
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meta.VersioningConfigXML = []byte("<VersioningConfiguration><Status>Suspended</Status></VersioningConfiguration>")
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}
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if rules != "" {
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meta.LifecycleConfigXML = []byte("<LifecycleConfiguration>" + rules + "</LifecycleConfiguration>")
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}
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if err := meta.Save(ctx, z); err != nil {
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t.Fatal(err)
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}
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globalBucketMetadataSys.Set(m.bucket, meta)
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es := &expiryState{ctx: ctx, objAPI: z}
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workers := []chan expiryOp{m.queue}
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es.workers.Store(&workers)
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prev := globalExpiryState
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globalExpiryState = es
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t.Cleanup(func() { globalExpiryState = prev })
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return m
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}
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func (m *migrationILM) key(object, versionID string) string {
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if versionID == "" {
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versionID = nullVersionID
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}
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return object + " " + versionID
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}
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func (m *migrationILM) track(object string) {
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if !slices.Contains(m.objects, object) {
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m.objects = append(m.objects, object)
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}
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}
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// put writes a version of object to pool 0.
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func (m *migrationILM) put(object, label string, opts ObjectOptions) ObjectInfo {
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m.t.Helper()
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oi := putConsistencyObject(m.t, m.z, m.bucket, object, 0, object+" "+label, opts)
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m.labels[m.key(object, oi.VersionID)] = label
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m.track(object)
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return oi
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}
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// marker writes a delete marker of object to pool 0.
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func (m *migrationILM) marker(object, label string, mtime time.Time) {
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m.t.Helper()
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versionID := mustGetUUID()
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_, err := m.z.serverPools[0].DeleteObject(m.t.Context(), m.bucket, object,
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ObjectOptions{Versioned: true, VersionID: versionID, DeleteMarker: true, MTime: mtime})
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if err != nil {
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m.t.Fatal(err)
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}
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m.markers[m.key(object, versionID)] = label
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m.track(object)
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}
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// tiered writes a version of object to pool 0 whose data is in a remote tier.
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func (m *migrationILM) tiered(object, label string) ObjectInfo {
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m.t.Helper()
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ctx := m.t.Context()
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oi := m.put(object, label, ObjectOptions{Versioned: true})
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infos, errs := readAllFileInfo(ctx, m.z.serverPools[0].getHashedSet(object).getDisks(), "", m.bucket, object, oi.VersionID, false, false)
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if errs[0] != nil {
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m.t.Fatal(errs[0])
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}
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fi := infos[0]
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fi.TransitionStatus, fi.TransitionTier, fi.TransitionedObjName = lifecycle.TransitionComplete, "WARM", "remote"
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if err := m.z.serverPools[0].DecomTieredObject(ctx, m.bucket, object, fi, ObjectOptions{}); err != nil {
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m.t.Fatal(err)
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}
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stored, err := m.z.serverPools[0].GetObjectInfo(ctx, m.bucket, object, ObjectOptions{VersionID: oi.VersionID})
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if err != nil || stored.TransitionedObject.Status != lifecycle.TransitionComplete {
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m.t.Fatalf("fixture is not a transitioned version: %q, %v", stored.TransitionedObject.Status, err)
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}
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return oi
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}
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func (m *migrationILM) label(object, versionID string, deleted bool) string {
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key := m.key(object, versionID)
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if l, ok := m.markers[key]; ok && deleted {
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return l
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}
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if l, ok := m.labels[key]; ok && !deleted {
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return l
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}
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if deleted {
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return "DM"
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}
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return "?"
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}
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// move moves the contents of pool 0 out with a decommission, as the admin API
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// runs it, including the check for versions left behind, or with a rebalance
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// pass, with the walker's accounting and the removal of the source copies.
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// The rebalance goal is never reached, so the walk visits every object. The
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// test fails unless a decommission completes. ILM has not caught up yet.
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func (m *migrationILM) move(kind string) {
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m.t.Helper()
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ctx := m.t.Context()
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if kind == "rebalance" {
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migrationTestWalk(m.t, m.z, m.bucket, 0, kind)
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m.z.rebalMu.Lock()
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m.z.rebalMeta.PoolStats[0].Info.Status = rebalCompleted
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m.z.rebalMu.Unlock()
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return
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}
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if err := m.z.StartDecommission(ctx, 0); err != nil {
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m.t.Fatal(err)
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}
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m.z.doDecommissionInRoutine(ctx, 0)
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m.z.poolMetaMutex.RLock()
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info := *m.z.poolMeta.Pools[0].Decommission
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m.z.poolMetaMutex.RUnlock()
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if !info.Complete || info.Failed || info.ItemsDecommissionFailed > 0 {
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m.t.Fatalf("decommission did not complete: complete=%t failed=%t itemsFailed=%d; pool 0 holds %v",
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info.Complete, info.Failed, info.ItemsDecommissionFailed, m.view(0))
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}
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}
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// migrate moves the contents of pool 0 out and lets ILM catch up.
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func (m *migrationILM) migrate(kind string) {
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m.t.Helper()
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m.move(kind)
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m.catchUp()
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}
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// catchUp lets ILM catch up with data movement out of pool 0: the queued
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// expiries run as the expiry workers run them, and the rules are applied to
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// the current version of every object as the scanner applies them in the pool
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// that holds it now. A transitioned version is not expired: its remote tier is
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// not configured here.
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func (m *migrationILM) catchUp() {
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m.t.Helper()
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ctx := m.t.Context()
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for len(m.queue) > 0 {
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op := <-m.queue
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task, ok := op.(expiryTask)
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if !ok {
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m.t.Fatalf("unexpected expiry operation %T", op)
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}
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oi := task.objInfo
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m.t.Logf("%s queued %s of %s %s", task.src, task.event.Action, oi.Name, m.label(oi.Name, oi.VersionID, oi.DeleteMarker))
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if oi.TransitionedObject.Status == "" {
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applyExpiryOnNonTransitionedObjects(ctx, m.z, oi, task.event, task.src)
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}
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}
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lc, err := globalLifecycleSys.Get(m.bucket)
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if err != nil {
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return // no rules
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}
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lr, err := globalBucketObjectLockSys.Get(m.bucket)
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if err != nil {
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m.t.Fatal(err)
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}
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for _, object := range m.objects {
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oi, err := m.z.GetObjectInfo(ctx, m.bucket, object, ObjectOptions{})
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if isErrObjectNotFound(err) || isErrMethodNotAllowed(err) {
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continue // deleted
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}
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if err != nil {
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m.t.Fatal(err)
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}
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evt := evalActionFromLifecycle(ctx, *lc, lr, nil, oi)
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if evt.Action.Delete() && oi.TransitionedObject.Status == "" {
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applyExpiryOnNonTransitionedObjects(ctx, m.z, oi, evt, lcEventSrc_Scanner)
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}
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}
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}
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// latest returns the label of the version a read of object returns.
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func (m *migrationILM) latest(object string) string {
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m.t.Helper()
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oi, err := m.z.GetObjectInfo(m.t.Context(), m.bucket, object, ObjectOptions{})
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if err != nil && (!oi.DeleteMarker || !isErrObjectNotFound(err) && !isErrMethodNotAllowed(err)) {
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m.t.Fatal(err)
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}
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return m.label(object, oi.VersionID, oi.DeleteMarker)
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}
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// view returns the versions of each object in a pool, newest first. Delete
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// markers and versions the test did not write are "DM" and "?".
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func (m *migrationILM) view(pool int) map[string][]string {
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m.t.Helper()
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view := map[string][]string{}
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for _, set := range m.z.serverPools[pool].sets {
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err := set.listObjectsToDecommission(m.t.Context(), decomBucketInfo{Name: m.bucket}, func(entry metaCacheEntry) {
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fivs, err := entry.fileInfoVersions(m.bucket)
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if err != nil {
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m.t.Errorf("%s: %v", entry.name, err)
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return
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}
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for _, fi := range fivs.Versions {
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view[entry.name] = append(view[entry.name], m.label(entry.name, fi.VersionID, fi.Deleted))
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}
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})
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if err != nil {
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m.t.Fatal(err)
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}
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}
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return view
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}
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// check fails the test unless pool 0 is empty and pool 1 holds the versions
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// of want.
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func (m *migrationILM) check(want map[string][]string) {
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m.t.Helper()
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if left := m.view(0); len(left) > 0 {
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m.t.Errorf("pool 0 still holds %v", left)
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}
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got := m.view(1)
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for _, object := range m.objects {
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if !slices.Equal(got[object], want[object]) {
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m.t.Errorf("%s: pool 1 holds %v, want %v", object, got[object], want[object])
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}
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}
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}
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// versions writes v1, v2 and v3 of each object.
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func (m *migrationILM) versions(opts ObjectOptions, objects ...string) {
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for _, object := range objects {
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for _, label := range []string{"v1", "v2", "v3"} {
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m.put(object, label, opts)
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}
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}
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}
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// aged writes v1, v2 and v3 of each object, five, four and age days ago.
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func (m *migrationILM) aged(age int, objects ...string) {
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for _, object := range objects {
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m.put(object, "v1", ObjectOptions{Versioned: true, MTime: UTCNow().AddDate(0, 0, -5)})
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m.put(object, "v2", ObjectOptions{Versioned: true, MTime: UTCNow().AddDate(0, 0, -4)})
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m.put(object, "v3", ObjectOptions{Versioned: true, MTime: UTCNow().AddDate(0, 0, -age)})
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}
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}
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// migrationILMRule returns a rule for the objects under obj-.
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func migrationILMRule(action string) string {
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return "<Rule><ID>rule</ID><Status>Enabled</Status><Filter><Prefix>obj-</Prefix></Filter>" + action + "</Rule>"
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}
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// migrationILMExpireCurrent expires the current versions at a past date (S3
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// expiration dates are midnights).
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func migrationILMExpireCurrent() string {
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date := UTCNow().Truncate(24*time.Hour).AddDate(0, 0, -2).Format(time.RFC3339)
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return migrationILMRule("<Expiration><Date>" + date + "</Date></Expiration>")
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}
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// testMigrationLifecycleExpiry runs the cases that decommission and rebalance
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// share.
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func testMigrationLifecycleExpiry(t *testing.T, kind string) {
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versioned := ObjectOptions{Versioned: true}
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t.Run("versioned/no-lifecycle", func(t *testing.T) {
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m := newMigrationILM(t, versioning.Enabled, false, "")
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m.versions(versioned, "obj-01", "keep-01")
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m.migrate(kind)
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m.check(map[string][]string{"obj-01": {"v3", "v2", "v1"}, "keep-01": {"v3", "v2", "v1"}})
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})
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// The expiry puts a delete marker on top of v3, which must be moved.
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t.Run("versioned/expire-current", func(t *testing.T) {
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m := newMigrationILM(t, versioning.Enabled, false, migrationILMExpireCurrent())
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m.versions(versioned, "obj-01", "keep-01")
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m.migrate(kind)
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m.check(map[string][]string{"obj-01": {"DM", "v3", "v2", "v1"}, "keep-01": {"v3", "v2", "v1"}})
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})
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// Object lock does not hold back the delete marker, and v3 is under
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// retention.
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t.Run("versioned/expire-current-locked", func(t *testing.T) {
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m := newMigrationILM(t, versioning.Enabled, true, migrationILMExpireCurrent())
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m.put("obj-01", "v1", versioned)
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m.put("obj-01", "v2", versioned)
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v3 := m.put("obj-01", "v3", ObjectOptions{Versioned: true, UserDefined: map[string]string{
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strings.ToLower(xhttp.AmzObjectLockMode): string(objectlock.RetCompliance),
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strings.ToLower(xhttp.AmzObjectLockRetainUntilDate): amztime.ISO8601Format(UTCNow().Add(24 * time.Hour)),
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}})
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m.migrate(kind)
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m.check(map[string][]string{"obj-01": {"DM", "v3", "v2", "v1"}})
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oi, err := m.z.serverPools[1].GetObjectInfo(t.Context(), m.bucket, "obj-01", ObjectOptions{VersionID: v3.VersionID})
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if mode := objectlock.GetObjectRetentionMeta(oi.UserDefined).Mode; err != nil || mode != objectlock.RetCompliance {
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t.Errorf("v3 retention in pool 1: %q, %v", mode, err)
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}
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})
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// In a suspended bucket the expiry puts a null delete marker on top: a
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// versioned v3 stays, a null current version is replaced.
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t.Run("suspended/expire-current", func(t *testing.T) {
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m := newMigrationILM(t, versioning.Suspended, false, migrationILMExpireCurrent())
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m.versions(versioned, "obj-01")
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m.put("obj-null", "v1", versioned)
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m.put("obj-null", "null", ObjectOptions{VersionSuspended: true})
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m.migrate(kind)
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m.check(map[string][]string{"obj-01": {"DM", "v3", "v2", "v1"}, "obj-null": {"DM", "v1"}})
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})
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// v1 has been noncurrent for four days and is deleted by the queued
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// expiry. The source copies of v2 and v3 must be removed although v1 has
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// not been deleted yet.
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t.Run("versioned/noncurrent-expiration", func(t *testing.T) {
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m := newMigrationILM(t, versioning.Enabled, false,
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migrationILMRule("<NoncurrentVersionExpiration><NoncurrentDays>1</NoncurrentDays></NoncurrentVersionExpiration>"))
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m.aged(0, "obj-01", "keep-01")
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m.migrate(kind)
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m.check(map[string][]string{"obj-01": {"v3", "v2"}, "keep-01": {"v3", "v2", "v1"}})
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})
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// Only a delete marker without noncurrent versions is expired.
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t.Run("versioned/expired-delete-marker", func(t *testing.T) {
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m := newMigrationILM(t, versioning.Enabled, false,
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migrationILMRule("<Expiration><ExpiredObjectDeleteMarker>true</ExpiredObjectDeleteMarker></Expiration>"))
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m.marker("obj-dm", "dm", UTCNow())
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m.put("obj-top", "v1", versioned)
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m.marker("obj-top", "dm", UTCNow())
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m.marker("keep-dm", "dm", UTCNow())
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m.migrate(kind)
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m.check(map[string][]string{"obj-top": {"dm", "v1"}, "keep-dm": {"dm"}})
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})
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// ILM deletes every version of obj-01 with v3, and of obj-dm with its
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// marker. Until the queued expiry does, the moved older versions must
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// stay hidden.
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for _, tc := range []struct{ name, rule, object, latest string }{
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{"expire-all-versions", "<Expiration><Days>1</Days><ExpiredObjectAllVersions>true</ExpiredObjectAllVersions></Expiration>", "obj-01", "v3"},
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{"expire-marker-all-versions", "<DelMarkerExpiration><Days>1</Days></DelMarkerExpiration>", "obj-dm", "dm"},
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} {
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||||
t.Run("versioned/"+tc.name, func(t *testing.T) {
|
||||
m := newMigrationILM(t, versioning.Enabled, false, migrationILMRule(tc.rule))
|
||||
m.aged(3, "obj-01", "keep-01")
|
||||
m.put("obj-dm", "v1", ObjectOptions{Versioned: true, MTime: UTCNow().AddDate(0, 0, -5)})
|
||||
m.marker("obj-dm", "dm", UTCNow().AddDate(0, 0, -3))
|
||||
m.move(kind)
|
||||
if got := m.latest(tc.object); got != tc.latest {
|
||||
t.Errorf("%s reads as %s before ILM deletes it, want %s; pool 0 holds %v, pool 1 holds %v",
|
||||
tc.object, got, tc.latest, m.view(0), m.view(1))
|
||||
}
|
||||
m.catchUp()
|
||||
want := map[string][]string{"obj-01": {"v3", "v2", "v1"}, "keep-01": {"v3", "v2", "v1"}, "obj-dm": {"dm", "v1"}}
|
||||
delete(want, tc.object)
|
||||
m.check(want)
|
||||
})
|
||||
}
|
||||
|
||||
t.Run("unversioned/expire-current", func(t *testing.T) {
|
||||
m := newMigrationILM(t, "", false, migrationILMExpireCurrent())
|
||||
m.put("obj-01", "null", ObjectOptions{})
|
||||
m.put("keep-01", "null", ObjectOptions{})
|
||||
m.migrate(kind)
|
||||
m.check(map[string][]string{"keep-01": {"null"}})
|
||||
})
|
||||
}
|
||||
|
||||
func TestPoolsDecommissionLifecycleExpiry(t *testing.T) {
|
||||
testMigrationLifecycleExpiry(t, "decommission")
|
||||
|
||||
// A transitioned v3 is moved as metadata; its remote data stays.
|
||||
// Rebalance does not move transitioned versions yet.
|
||||
t.Run("versioned/expire-current-tiered", func(t *testing.T) {
|
||||
m := newMigrationILM(t, versioning.Enabled, false, migrationILMExpireCurrent())
|
||||
m.put("obj-01", "v1", ObjectOptions{Versioned: true})
|
||||
m.put("obj-01", "v2", ObjectOptions{Versioned: true})
|
||||
v3 := m.tiered("obj-01", "v3")
|
||||
m.migrate("decommission")
|
||||
m.check(map[string][]string{"obj-01": {"v3", "v2", "v1"}})
|
||||
oi, err := m.z.serverPools[1].GetObjectInfo(t.Context(), m.bucket, "obj-01", ObjectOptions{VersionID: v3.VersionID})
|
||||
if err != nil || oi.TransitionedObject.Status != lifecycle.TransitionComplete {
|
||||
t.Errorf("v3 in pool 1 is not transitioned: %q, %v", oi.TransitionedObject.Status, err)
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
// A current version that ILM expires in a versioned bucket stays as a
|
||||
// noncurrent version. The check after decommission must count it when it is
|
||||
// left in the pool.
|
||||
func TestPoolsDecommissionCountsExpiredCurrentVersions(t *testing.T) {
|
||||
m := newMigrationILM(t, versioning.Enabled, false, migrationILMExpireCurrent())
|
||||
m.migrate("decommission")
|
||||
putConsistencyObject(t, m.z, m.bucket, "obj-01", 0, "v1", ObjectOptions{Versioned: true})
|
||||
if err := m.z.checkAfterDecom(t.Context(), 0); err == nil {
|
||||
t.Fatal("decommission check passed with an expired current version left in the pool")
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user